Grounding Roller Stringing Block High Efficiency Conductor Stringing System For Power Grids​

Core Design Features​​

• ​​Heavy-duty steel frame​​ with hot-dip galvanized coating for corrosion resistance
• ​​Double-bearing grounding rollers​​ ensure smooth conductor movement under load
• ​​Integrated grounding clamp​​ (compatible with 50mm² to 120mm² grounding cables)
• ​​Working Load Limit (WLL):​​ 5-25 tons (color-coded for easy identification)
• ​​Conductor compatibility:​​ ACSR, AAAC, and ACCC cables (10mm to 50mm diameter)
• ​​Safety factor:​​ 4:1 per ​​IEEE 524 & IEC 61328​​ standards

​​Operational Advantages​​
✔ ​​50% faster conductor stringing​​ compared to traditional blocks
✔ ​​Built-in grounding system​​ eliminates static buildup during live work
✔ ​​Low-friction roller design​​ reduces required pulling force by 30%
✔ ​​Modular construction​​ allows quick roller replacement in the field
✔ ​​UV-resistant nylon side plates​​ for long-term outdoor use

​​Safety Certifications​​
✓ ​​OSHA 1910.269​​ compliant for live-line maintenance
✓ ​​IEEE 524​​ certified for overhead conductor installation
✓ ​​ANSI/ASME B30.26​​ rated for rigging safety
✓ ​​Non-sparking aluminum alloy components​​ for hazardous environments
✓ ​​Automatic load brake​​ prevents runaway cable slippage

​​Maintenance & Durability​​

• ​​Self-lubricating bearings​​ (10,000+ hours service life)
• ​​Wear indicators​​ on roller grooves for easy inspection
• ​​Quick-release axle pin​​ for fast roller replacement
• ​​3-year warranty​​ against material defects
• ​​IP55-rated​​ for dust/water resistance

​​Typical Applications​​
➔ ​​Transmission line conductor stringing​​
➔ ​​Live-line maintenance & repair​​
➔ ​​Substation busbar installation​​
➔ ​​Underground cable pulling guidance​​
➔ ​​Emergency storm restoration work​

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​​Optional Accessories​​

• ​​Laser-etched load rating tags​​
• ​​Insulated hot-stick adapter​​ (for live work)
• ​​Digital tension monitoring kit​​
• ​​Heavy-duty transport case​​
• ​​Custom conductor liner inserts​

Suntech Power Group is one of the largest Procurement, Engineering & Contracting Group companies in China.Our group branch company and factory have already engaged

in the field of electric power more than 26 years.

1.Steel structure industry especially steel towers and related products which include power towers and substation structures, telecommunication towers and related products of telecom sites, street light poles and so on.

2.Transmission line stringing tools and equipments,undergroud cable pulling tools incuded Stringing Blocks,Hoisting Tackles,Cable Rollers,Conductor Gripper,Gasoline Powered Winch,Hydraulic Puller Tensioner,Gin Poles,Inspection Trolleys and other rated machines.

3.Power fittings,transmission insulators and wires and cables included Suspension insulator,glass insulator,porcelain insulator,aluminum conductor steel reinforced,all aluminum alloy conductor,aluminum clad steel strand, aerial bounded cable,power cable,holding clamp,pulling clamp with pulley,arch plates,connector pipes and rated fittings.

And our branch company Ningbo Suntech Power Machinery Tools Co.,Ltd. as a professional global supplier

who have been exporting more than 90 countries in the world, we have been trying to focus on the comprehensive solutions like provides all related products and engineering services as client's requirement, for example from engineering consultant, design services, drawing services, manufacturing, transportation, supervision and even installation construction & maintenance services.

Insisting on business philosophy of “To be honest, To get win-win” and service concept of pursuing maximizing customer value , makes it win great reputations from both telecommunication operators and electricity power operators,we are willing to develop and share sucess with you.